Definitions
Denominator
Bottom number of a fraction
If you are dividing a whole number by a fraction you must first do what to the whole number?
Put a 1 underneath it to make it a fraction.
1/2 ÷ 4
1/8
1/2 ÷ 1/3
3/2 = 1 1/2
1 ÷ 1/5
5
Numerator
top number of a fraction
When dividing fractions, what do you do to the first fraction in the problem?
KEEP it the same.
3 ÷ 1/3
9
3/4 ÷ 2/5
15/8 = 1 7/8
3 ÷ 1/3
9
The rule (three words) used when dividing fractions?
KEEP CHANGE FLIP
When dividing fractions, what do you do to the division sign?
Change it to multiplication.
1/3 ÷ 4
1/12
4/7 ÷ 2/3
12/14 = 6/7
1/6 ÷ 3
1/18
What is the RECIPROCAL of a number? (Hint: it is either KEEP, CHANGE, or FLIP).
FLIP
When dividing fractions, what must you do to the second fraction in the problem?
Find its reciprocal or flip it
2 ÷ 1/4
8
5/9 ÷ 1/2
10/9 = 1 1/9
1/4 ÷ 6
1/24
What is the answer to a division problem called?
Quotient
Fractions should always be in this form: ______.
Simplest form
1/4 ÷ 2
1/8
3/4 divided by 3/4
1
5 ÷ 1/4
20